Skywatcher Dobson Telescope N 254/1200 Pyrex Skyliner Classic DOB

The Skywatcher Dobson Telescope N 254/1200 Pyrex Skyliner Classic DOB is a powerful Newton mirror telescope with excellent optical performance at a particularly favorable price. With its large 254 mm (10-inch) mirror and user-friendly Dobson mount, this telescope offers an impressive combination of brightness, contrast and simplicity.

Dobson telescopes are popular because of their practical and intuitive design: a fixed optical tube in a rotating wooden Rocker box. You move the telescope smoothly with one hand and can start observing immediately, without complicated alignment or electronic controls.

The main mirror is made of Pyrex glass, a material with very low thermal expansion. As a result, the mirror retains its shape much better during cooling than standard BK7 glass, resulting in sharper images, especially during longer sessions. The parabolic mirror has excellent optical accuracy (λ/8 or better) and a Strehl value of at least 0.8, a guarantee of diffraction limit performance.

With his focal length of 1200 mm and an aperture ratio of f/4,7 the Skyliner-254 offers a bright, high-contrast image suitable for both planetary observations and deep-sky objects. Under dark skies, stars up to magnitude 13.8 become visible, and nebulae and galaxies already clearly show their structure.

The robust Crayford focuser of 2″ with ball bearing ensures accurate focusing without backlash. Thanks to the included 1.25″ adapter, you can also use standard eyepieces. The 9×50 viewfinder helps you easily detect fainter objects.

The wooden Rocker box mount rotates smoothly in both azimuth and elevation directions and remains stable in any position. The integrated Tension Control System allows you to adjust the friction resistance, so you can tailor the movement exactly to your preference, smooth, but stable.

Its simplicity and optical performance make this model an excellent choice for both beginners and advanced observers who want to get the most out of their observing nights visually.

Application

The Skywatcher Skyliner Classic 254/1200 is ideal for enthusiasts who want to observe deep-sky objects and planets in impressive detail.
What you can see with it:

• The moon with sharp craters, rills and shadows
• The cloud bands and moons of Jupiter
• The rings of Saturn
• Bright nebulae such as the Orion Nebula (M42)
• Globular clusters such as M13 in Hercules
• Galaxies such as Andromeda (M31) and Whirlpool (M51)

Notice: Tracking objects is done manually. Photography of deep-sky objects requires a tracking mount. With an optional solar filter, you can safely observe sunspots.

Specifications

Optics
Type: Reflector (Newton)
Opening: 254 mm
Focal length: 1200 mm
Aperture ratio: f/4.7
Resolution: 0.45 arc seconds
Boundary magnitude: 13.8
Light output: 1320× human eye
Maximum useful magnification: 510×
Main mirror: Parabolic Pyrex glass
Secondary mirror: Plan parallel
Reflectivity: 94%
Protective coating: Quartz + aluminum
Tube construction: full tube
Tube weight: 12 kg

Focuser
Type: Crayford with ball bearing
Ocular connection: 2″ with 1.25″ adapter

Mount
Type: Dobson (Rocker box)
Material: Wood
Tension Control System: Yes
Movement: Azimuth and elevation, sliding and C-bearings

Included

• 25 mm and 10 mm eyepieces (1.25″)
• 9×50 viewfinder
• 2″ Crayford focuser
• Rocker box mount
• 1.25″/2″ adapter

Use & suitability
Moon & planets: Yes
Nebulae & galaxies: Yes
Astrophotography: No (only with additional mount)
Nature observation: No
Sun: Only with suitable sunscreen
Recommended for: Beginners and advanced students

Dimensions & weight
Total weight: 32 kg